Analog Monitors

The HOFFMAN & LAMSON Analog Meter Relay monitors motor amperage and air flow and automatically shuts down the blower motor when amperages fall outside the designated operating range.

Our Meter Relay is available in single set point configuration for low amp set point surge monitoring or a dual set point for low and high amps surge and overload set point monitoring.

For blower vibration monitoring, a single Vibration Switch is available for mounting on the blower housing or bearing. When alarmed, contacts contained in the switch open (or close).